2015 Robert Duncan Simple Things Wall Calendar Fulfillment Advantage 2015 Robert Duncan Simple Things Wall Calendar. Height: 12.000 inches. Width: 13.500 inches. Timespan: 12-months. Each calendar is printed on quality paper and features 12 rich reproductions of Robert Duncan's original country and family artwork, matched with inspiring quotes. Artwork by Robert Duncan matched with inspiring quotes. Monthly views include previous and next month views. Year At-a-Glance (Jan-Dec 2016). Artwork by Robert Duncan matched with inspiring quotes, printed on high-quality paper. This calendar makes an excellent gift.